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CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA
Jin, Z (Jin, Z.)[ 1 ]; Dong, YS (Dong, Y. S.)[ 2 ]; Qi, YC (Qi, Y. C.)[ 2 ]; Liu, WG (Liu, W. G.)[ 1 ]; An, ZS (An, Z. S.)[ 1 ]
2013-04-30
发表期刊LAND DEGRADATION & DEVELOPMENT
卷号24期号:2页码:141-146
文章类型期刊论文
摘要

The application of fractal geometry to describe soil degradation and dynamics is becoming a useful tool for better understanding of the performance of soil systems. In this study, four different land cover types, which represent a sequence of grassdesert shrub transition and a gradient of desertification, were selected, and soils at depths of 010, 1020 and 2040cm were sampled in the Ordos Plateau of Inner Mongolia, PR China. The fractal theory was used to analyse the soil particle-size distribution (PSD) and its variations. The results showed that (i) vegetation conversion and desertification significantly changed the soil PSD. During the desertification process, soil coarse fractions that ranged from 250 to 100 mu m significantly increased, whereas fine fractions lower than 50 mu m significantly decreased (p<0 center dot 01); (ii) fractal model of the accumulative volume particle-size distribution is appropriate, and fractal dimensions (Dm) of soil PSD significantly decreased along the sequence of grassdesert shrub transition; (iii) Dm is more sensitive to the desertification process, and therefore, we suggest Dm other than soil texture and soil organic carbon as a reliable parameter to reflect the soil environment change induced by desertification.

关键词Fractal Dimension Soil Psd Vegetation Conversion Desertification Ordos Plateau Pr China Mongolia Soil Particle‐size
DOI10.1002/ldr.1112
收录类别SCI ; EI
语种英语
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9929
专题生态环境研究室
通讯作者Jin, Z (Jin, Z.)[ 1 ]
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, PR China;
2.Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, PR China
推荐引用方式
GB/T 7714
Jin, Z ,Dong, YS ,Qi, YC ,et al. CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA[J]. LAND DEGRADATION & DEVELOPMENT,2013,24(2):141-146.
APA Jin, Z ,Dong, YS ,Qi, YC ,Liu, WG ,&An, ZS .(2013).CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA.LAND DEGRADATION & DEVELOPMENT,24(2),141-146.
MLA Jin, Z ,et al."CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA".LAND DEGRADATION & DEVELOPMENT 24.2(2013):141-146.
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